<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

</head>
<body>
    <!--
        属性cellpadding="" cellspacing="" 写在table上的
        cellpadding 单元格和内容的“填充”
        cellspacing 单元格之间的距离
    -->
    <table width="200" height="200" border="3" cellpadding="20" cellspacing="30">
        <tr>
            <td>1</td>
        </tr>
    </table>
</body>
</html>
